Across
- 2. AV ______: part of the cardiac conduction system that extends from the AV node to the bundle branches, another word for the AV junction.
- 4. Lower chambers of the heart.
- 6. Causes contraction in the heart.
- 11. pulmonary ______: carry deoxygenated blood out of the right ventricle and into the lungs.
- 12. Upper chambers of the heart.
- 14. Flat lines between complexes, such as the PR and ST.
- 19. ______ leads: the 6 standard chest leads in EKG.
- 21. ______ valve: valve between the right atrium and the right ventricle.
- 23. ______ vena cava: the vein that returns blood from body areas below the diaphragm.
- 24. Shown by a square-shaped arch that is 10 mm high, to show you that the EKG machine is calibrated correctly.
- 26. outer layer of the heart.
- 28. ______ valve: valve positioned between the right ventricle and the pulmonary artery.
- 29. period of time when the heart muscle is contracting.
- 32. recharging of a heart cell back to a resting state.
- 34. Distance between certain parts of the heartbeat on the EKG, most common ones are PR, R-R, QRS, and QT.
Down
- 1. ______ vena cava: vein that brings blood to the heart from the upper body.
- 3. Divides the right and left chambers of the heart.
- 5. pulmonary ______: flow of blood from the heart to the lungs and back to the heart.
- 7. ______ leads: aVF, aVR, aVL, unipolar leads on right and left arm and left foot.
- 8. ______ branches: located in the interventricular septum, receives impulses from the AV Junction.
- 9. period of time when the heart muscle is relaxed and the chambers fill with blood.
- 10. The top of the heart.
- 13. a device for conducting electricity, put onto the patients skin and then attached to lead wires.
- 14. ______ leads: Leads I, II and III.
- 15. ______ fibers: specialized conductive fibers located within the walls of the ventricles.
- 16. Bundle of ______: Part of the AV junction that sends electricity from the atria to the ventricles.
- 17. inner lining of the heart.
- 18. pulmonary ______: carry the oxygenated blood from the lungs into the left atrium of the heart.
- 19. a double layer of membranes surrounding the heart.
- 20. ______ valve: heart valve between the left ventricle and the aorta.
- 22. The SA node is the natural ______ of the heart. First point of electrical stimulation in the heart.
- 25. Bottom left point of the heart.
- 27. ______ valve: valve between the left atrium and the left ventricle; bicuspid valve.
- 30. interference in the EKG machine from electronics, patient movement, or loose electrodes.
- 31. Largest artery in the body.
- 33. an angle or view of the heart that is recorded in an electrocardiogram.